How to fix the “VMX (outside TXT) disabled by bios Ubuntu” issue? Read the article to find out. Bobcares, as a part of our Server Management Service offers solutions to every query that comes our way.

VMX (outside TXT) disabled by bios Ubuntu: Fix

This error means that the BIOS settings on the computer have disabled Virtualization Technology (VT), also called VMX. Certain software and virtual machines require virtual technology (VT). Let’s see how to enable VMX and fix this error in this article.

The error appears as:

Virtual Machine Extensions, or VMX for short, is a virtualization technology. The Linux kernel’s built-in KVM (Kernel-based Virtual Machine) makes use of this virtualization technology. This causes an error to appear in the logs upon boot, stating that the BIOS disables the hardware capabilities and thus prevents its initialization.

To quickly remove the message, there is a workaround that only requires going to the BIOS settings and turning on virtualization technology. The steps are as follows:

1. Open the etc/default folder.

2. Modify the “grub” file.

3. Edit the next sentence

4. To update the “grub” file, use the Terminal command that follows.

Now, we can watch a presentation of a cleaner boot.

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Conclusion

VMX will enhance the VM’s performance. We get the error “VMX (outside TXT) disabled by BIOS” when it is not active. This error shows that the VMX has been disabled by the system’s BIOS settings, which keeps the system from taking advantage of virtualization technology.